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Chemistry, 20.09.2020 08:01 jude40

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1 point
Which of the following is an elemental substance?
Select all the correct answers.
Mercury
2
Oxygen (O2)
3
Platinum
Chlorine (C12)
Carbon Dioxide (CO2)

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E 1
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Which of the following is an elemental substance?
Select all the corr...

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